# SQL Server

# Execute the query in try block

BEGIN TRY

  DECLARE @result FLOAT;

  SET @result = 1/0;

  SELECT @result;

END TRY

# Specify what to return if an exception is occurred in the try block

BEGIN CATCH

  SELECT 'Error occurred: ' + ERROR_MESSAGE();

END CATCH

# --------------------------------------------------------------------

# MySQL

BEGIN

  DECLARE result FLOAT;

​

  BEGIN

    # Execute the query in try block

    SET result = 1/0;

  EXCEPTION

    # Specify what to return if an exception is occurred in the try block

    WHEN DIVISION_BY_ZERO THEN

      SELECT 'Error occurred: Division by zero';

  END;

END;

# --------------------------------------------------------------------

# PostgreSQL

DO $$

BEGIN

  DECLARE result FLOAT;

​

  BEGIN

    # Execute the query in try block

    result := 1/0;

  EXCEPTION

    # Specify what to return if an exception is occurred in the try block

    WHEN division_by_zero THEN

      RAISE EXCEPTION 'Error occurred: Division by zero';

  END;

END $$;

​